Preserving nature and its resources is steadily gaining on importance. Different organizations have in recent years taken a substantial step to raise awareness of people on care for our planet. Therefore, in the wood industry we are working hard to increase the use of wood as a raw material. It is not optimal from any point of view to use solid wood for energetic purposes, but still a large proportion of wood is misused for this way. In this master project, we wanted to prove that coloured wood, which has a lot lower market value, can still be a good input material for production of high added value materials such as thermally modified wood. However the use of such material depends on its properties. For this reason we tested the coloured and non-coloured control timber and defined their classic sorption properties, the dynamic sorption of water vapour, contact angle, determined capillary suction, long-term water uptake, impregnability, resistance to fungal decay, flexural strength and compressive strength. Based on all of these parameters, we have seen that the coloured wood absorbs water quicker but still has the same mechanical properties as a non-coloured timber.
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